Yep, I plan on upgrading to 8GB of RAM sometime in the future, I just don't have the cash right now. I did already order a 750GB internal to replace this 250 so that I don't have to worry about hard drive space. I was stretching it thin just buying this MBP in the first place, but I don't regret it!
My plan is to install Windows 7 Ultimate (have it already) via bootcamp. Then, without activating anything, I will install Parallels (have it already) to point to the bootcamp partition. This seems like it would give me to most flexibility. If I feel like I need more power (especially before upgrading to 8GB RAM), then I can just restart and boot into the same partition.
Thanks for the reply.

Having basically 2 computers in one was one of the biggest things that appealed to me.